有代码,调试出现的对象不存在的情况
js代码
// JavaScript Documentfunction insertParagraph(text){ var str = "<p>"; str += text; srt+="</p>"; document.write(str);}<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Test</title></head><body><script type="text/javascript" src="example.js"></script><script type="text/javascript"> insertParagraph("This is inserted.");</script></body></html>